This performance kit installation steps on Audi A3: 1. Disconnect the negative terminal from the vehicle battery. 2. Remove the plastic engine cover. (Fig. 1) 3. Unclip & remove the engine breather hose from the intake pipe. (Fig. 2) 4. Remove the small vacuum hose from under the breather hose on the intake pipe. Follow the vacuum hose & remove the hose from the inlet manifold. Blank off the pipe on the manifold using the small rubber cap supplied. (Fig. 3) 5. Remove the small rubber hose from the side of the intake pipe as shown. (Fig. 4) 6. Unclip & remove the auxiliary air pump feed pipe from the air box as shown. (Fig. 5) 7. Unclip & remove the plastic intake pipe from the throttle housing. (Fig. 6) 8. Remove the air box securing bolt & carefully pull the air box assembly out of its mounting grommets. Remove the air box (more…)

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Before beginning repairs on the electrical system: Obtain the anti-theft radio security code. Switch the ignition off. Disconnect the battery Ground (GND) strap. On vehicles equipped with Audi Telematics by OnStar , switch-off the emergency (back-up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery Repair Manual, Communication, Repair Group 01 .
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